Historical clue formulations

• Feeling remorse for — 2025-10-15
• Having misgivings about — 2022-06-21
• Sorry about — 2015-04-23
• Kicking oneself for — 2014-08-30
• Regretting — 2012-02-13
• Wishing undone — 2010-10-03
• Having certain misgivings — 2009-12-27
• Contrite — 2007-04-29
• Remorseful — 2006-12-07
• Having second thoughts about — 2004-11-21
• Sorry — 1995-07-23
• Feeling regret — 1994-06-14